Set A Bone Between Two Coordinate

2.6 New:
1. If no bone or point is selected, get the coordinates of the center point of the layer
2. When the layer type is not vector layer or bone layer, get the coordinates of the center point of the layer (except audio layer and 3D layer)
V2.5 New (Edit from Eugene Babich):
1. Now everything works in global coordinates.
2. Reworked the skeleton search.
  
  If the skeleton is not found, the script will create a skeleton and place the vector layer in it.
3. Reworked Undo.
4. If you take coordinates from the bone with Alt pressed, it will take the coordinate of the tip of the bone, not the base.
5. If multiple points are selected, coordinates will be taken from the center of the selection.